Equipment for shooting of film

ABSTRACT

A system and a method for avoiding unwanted objects e.g. a microphone in a field of vision wherein a search field and an alarm field defined in the filed of vision is used to detect the object. Detectable means is attached to the unwanted object so as to make detection of the object easier. A suspension for microphones comprising an internal microphone holder interconnected to a plurality of bars by means of elastic members. A wind hood for a microphone comprising at least an outer, a middle and an inner layer of wind absorbing material stretchable arranged with interspaces around the microphone.

[0001] The invention relates to equipment for shooting of film, and inparticular to a system and a method for avoiding objects in a field ofvision, to a microphone suspension and to a wind hood for a microphone.

BACKGROUND OF THE INVENTION

[0002] Sound equipment for shooting of films often comprises a boom witha microphone mounted in the end, and wherein a boomer (the personholding the boom) holds the boom right above the actors in a specificdistance therefrom, so as to obtain as good sound on the film aspossible. The microphone may not be dropped into the field of vision andit is very difficult for the boomer to determine when the microphone isclose to or is in the field of vision.

[0003] Prior art describes systems, wherein an active item (such as adiode) is positioned on the microphone and which, via a control system,communicate a signal to the boomer when the microphone is close to thefield of vision.

[0004] For obtaining as good sound on the film as possible, there arehigh requirements to the microphone, e.g. how it is moved and itsposition. Microphones are often suspended in the end of a boom in asuspension having very weak vibration damping. As it is difficult forthe boomer to keep the microphone still during recording, there willalways be some vibrations in the microphone, which reduce the soundquality.

[0005] Furthermore, the wind effect on the microphone has a biginfluence on the sound quality on the film, and therefore it isnecessary to reduce the wind effect on the microphone as much aspossible. The microphone is often surrounded by a foamed membrane, whichhas a sound wave preventing effect, so that to enter the microphone thesound waves have to pass through a thick membrane. Thus, the soundquality is reduced.

DESCRIPTION OF THE INVENTION

[0006] It is an object of the present invention to provide a system foravoiding unwanted objects in a field of vision, so as to make it easierfor the boomer to control the movement of the microphone and so as toensure that the film or a part thereof is not destroyed due to unwantedobjects in the field of vision.

[0007] It is a further object of the present invention to provide asuspension for a microphone, which absorbs the vibrations from the boom,and wherein a plurality of microphones can be suspended.

[0008] It is a further object of the present invention to provide a windhood for a microphone, wherein the wind effect on the microphone isreduced to a minimum, and which allows for as free passage for the soundwaves to the microphone as possible.

[0009] According to a first aspect, the present invention relates to asystem for avoiding unwanted objects in a field of vision andcomprising:

[0010] a field of vision defining a predetermined picture format/size,

[0011] a search field,

[0012] an alarm field,

[0013] the field of vision being a proper subset of the alarm field,which is a proper subset of the search field,

[0014] detectable means attached to the unwanted object,

[0015] detecting means for searching the detectable means within atleast a part of the search field, and

[0016] signaling means for signaling when the detectable means enterssaid alarm field.

[0017] The alarm field is preferably adjustable and thus making itpossible to define the distance between the field of vision and thealarm field. The alarm field may be set such that the signaling meanssignal when the object is in a predefined distance from the edge of thefield of vision. The alarm field may be equal to the search field orequal to the field of vision.

[0018] The signal from the signaling means may be louder (audio) orlighting more (visual) the closer the object is to the field of vision,such that e.g. the boomer knows when the object is getting close to thefield of vision. The object may only be searched within the alarm fieldincluding the field of vision or in the limited area defined as the areawithin the alarm field but outside the field of vision. The object canalso be searched in the entire search field.

[0019] An apparatus may provide the field of vision and/or the searchfield for capturing images, and which may be able to capture stillimages or moving images. The apparatus for capturing moving images mayuse rolls of film sensitive to light but may also be a system of lightsensitive elements such as diodes, with which the pictures can be storedelectronically—either analogue or digital.

[0020] For electronically stored pictures the system preferably compriseone camera used to generate the search field. The alarm field isgenerated by cutting the search field according to the settings of thealarm field. The settings of the alarm field may be set to apredetermined constant but could as so be set to a user definedchangeable variables. The field of vision may be generated for the saidsearch field by cutting it according to the chosen picture format, butcould also be generated by a second camera generating electronicallystored pictures, which may have a different picture quality than thesaid camera for generating the search field.

[0021] For storing the pictures on rolls of film the system may comprisetwo cameras. One camera for storing the pictures electronically used togenerate the search field and one camera for storing the pictures onrolls of film used to generate the field of vision. The alarm field isgenerated by cutting the search field according to the settings of thealarm field using the above said method.

[0022] The above said system for detecting unwanted objects may beimplemented into the house of a camera, but could also be implemented ina separate box.

[0023] The detectable means are preferably passive means, which does notemit signals for detecting its position. Instead the passive meansreflects incoming light, thus the passive means is not powered byelectricity. Preferably, the passive means is colored in a specificcolor making it possible for the system for detecting unwanted objectsto detect the said objects by monitoring the said specific color.

[0024] The detecting means may comprise storing means for storing areference color equal to said specified color, and processing means fordetecting groups of pixels having at least a predefined number of pixelsrepresenting said specified color. Thus, the system search the entiresearch field or alarm field for groups of pixels representing thespecified color, and when it has found a group consisting of apredefined number, it may compare the color with the reference color.Thus, it knows where the detectable means is in the search field and/oralarm field.

[0025] When light is directed to an element having one color the colorof the object may look different depending on weather one looks at theshiny side or the shadow side of the object. Accordingly in thisinvention a color may be seen as not only one specific color but also asa shades or nuances of the same color, the shades being slightlydifferent. Thus the storing means may store shades of the same colorand/or shades of one color may be searched for in the algorithm/program.I.e. shades of one color e.g. blue (lighter and darker) may be searchedfor and/or shades of one color e.g. blue (lighter and darker) may bestored in the memory. It may be an object of the present invention tosearch for a plurality of colors (and their shades). As an exampleshades of yellow, and shades of green may be searched for if the objectcomprises both yellow and green.

[0026] Preferably, the means for detecting comprises a color histogramindicating the primary background colors in said search field, so as toallow choosing of a distinguishing specified color for the detectablemeans in relation to said background colors. Thus, there is less chanceof detecting an object in the search field not being the unwantedobject, but e.g. the trousers of one of the actors.

[0027] The system is preferably used in connections, where the objectcomprises a microphone suspended in a microphone suspension. In thatcase the detectable means may comprise a wind hood surrounding saidmicrophone and being colored in said specific color. Thus, it ispossible for the boomer always to keep the microphone out of the fieldof vision but as narrow as possible depending on the setting of thealarm field.

[0028] In order to be sure that the wind hood is detected regardless ofwhich way it is directed in relation to the light source, the wind hoodmay be made of a material having a substantially homogenous lightreflecting surface and it may be tubular and substantially ring-shaped.The material may comprise a textile of thin woven nylon fibers. In someembodiments the material comprises frotte and/or terry cloth and/ortowel cloth and/or velour.

[0029] The system may also detect the unwanted object using other meanssolely or in combination with the above said means using color. Theseother means may be means for detecting the shape of the unwanted objectbut may also be means for detecting changes in the color reflected bythe unwanted object. This could be done by letting the unwanted objectrotate around an axis thus displaying different sites of the object witha given interval. By letting the unwanted object have different color ondifferent sites, the rotation of the unwanted object generates a patterndetectable for the system for detecting the unwanted object. The windhood may be provided with different colors e.g. in a pattern which maybe used to detect the wind hood. Seen form the camera the contour of thewind hood may have sharp edges such that a sharp transition between thewind hood and the surroundings may be provided. The actual shape of thewind hood e.g. seen in a direction parallel to the microphone may bemore smooth such that wind turbulence around the wind hood iseliminated.

[0030] Preferably, the signaling means comprise means for transmittingthe alert to e.g. the boomer. The transmitting means may comprise meansfor transmitting the signal via wire and/or wireless communication, suchas infra red communication or radio frequency. The alert signal may bean audio or visual or a vibration signal.

[0031] According to a second aspect, the present invention relates to amethod for avoiding unwanted objects in a field of vision, the methodcomprising the steps of:

[0032] providing a field of vision defining a predetermined pictureformat/size,

[0033] providing a search field,

[0034] providing an alarm field,

[0035] the field of vision being a proper subset of the alarm field,which is a proper subset of the search field,

[0036] attaching detectable means on the unwanted object,

[0037] providing detecting means for searching the detectable meanswithin at least a part of the search field, and

[0038] providing signaling means for signaling when the detectable meansenters said alarm field.

[0039] The search field comprises a plurality of pixels representingcolors, and the detectable means may be colored in a specified colorequal to a reference color. The method may then further comprise thesteps of:

[0040] storing the reference color,

[0041] detecting groups of pixels in the search field having at least apredefined number of pixels representing the same color, and

[0042] comparing the groups of pixels having the same color with thesaid specified color.

[0043] Alternatively, the method may comprise the steps of:

[0044] storing the reference color,

[0045] detecting pixels having the specified color,

[0046] detecting adjacent pixels having the specified color and

[0047] comparing the number of adjacent pixels having the specifiedcolor with a predefined number of pixels.

[0048] Furthermore, the method may comprise, prior to the step ofstoring the reference color, the step of comparing the primarybackground colors in the search field with the reference color, so as tochoose a reference color being different from the colors in the searchfield.

[0049] In some embodiments a reference pattern of colors is stored andused to detect the wind hood.

[0050] Preferably, the method comprises the step of selecting the groupof pixels/adjacent pixels closest to the center of the field of vision,so as to select the origin of the object.

[0051] The reference color may be determined from an object by capturingan image of the object having the reference color. The reference colormay be determined on the basis of the entire image of the object or apart of the image. E.g. the system may be provided with means forselecting an area in which the color is determined. This could be doneby the user by means of a computer mouse.

[0052] The size of the alarm field may be adjusted by changing thelength of its edges or by choosing between different pre-set pictureformats. Thus, it is possible to set different alarm borders dependingon how close the object may come to the field of vision.

[0053] According to a third aspect, the invention relates to asuspension for microphones and comprising:

[0054] a base member,

[0055] a plurality of bars mounted on said base member and extending ina direction transverse to a plane defined by the base member,

[0056] an internal microphone holder holding one or more microphones,and

[0057] a plurality of first elastic members extending between said barsand the internal holder for holding the internal holder in relation tosaid bars.

[0058] In some embodiments the base member may be pivotable mounted to aboom. The base member may be a plate or a ringshaped element e.g. atorus like element.

[0059] The internal holder is suspended in elastic members, such thatany vibration from the boom does not give any resonance in themicrophone. The internal holder may comprise at least one annularhollowed member surrounding a part of a handgrip of the one or moremicrophones, and supporting surfaces for the one or more microphones maybe positioned in the interior area of said annular member. Preferably,the supporting surfaces comprise bricks of a resilient material, such assilicone, and the means for maintaining comprises second elastic membersattached to said annular members and adapted to press a part of saidhandgrip towards the bricks.

[0060] In a preferred embodiment, the suspension comprises at least twohollowed annular members surrounding a part of a handgrip of the one ormore microphones and being interconnected by at least an upper and lowerrod to which said first elastic members are attached. The internalholder is preferably suspended in the bars, such that at least one pointof suspension is placed between the center of gravity of themicrophone(s) and the head of the microphone(s).

[0061] The bars may in the ends opposite to the base member beinterconnected by a ring-shaped member, and the angle between the basemember and the ring-shaped member is between 100 ° and 60°, such asbetween 20° and 40°, such as 30°.

[0062] A wind hood may surround at least the head of the microphone(s)and having layers of wind absorbing material stretched arranged withinterspace on said bars.

[0063] According to a fourth aspect, the invention relates to a windhood for a microphone and comprising at least an outer, a middle and aninner layer of wind absorbing material stretchable arranged withinterspaces around the microphone. For each layer the wind passes, it isdecelerated and laminated, such that when the wind has passed all threelayers of wind absorbing material, the wind speed in reduced app.80-95%.

[0064] Preferably, the layers in the wind hood is tubular andsubstantially ring-shaped and made of a material having a substantiallyhomogenous wind absorbing surface, such that the wind absorbing effectfrom the wind hood is independent of the direction of the wind.

[0065] The material comprises an elastic fiber material, such as atextile of thin woven nylon fibers, and the interspace between eachlayer is 5-15 mm, such as 10 mm. The fibers may be woven such that thehole size in the woven pattern is between 0.1 mm² and 1 mm², such asbetween 0.3 mm² and 0.8 mm², such as between 0.5 mm² and 0.6 mm². Thedistance between each fiber may be between 0.1 mm and 1 mm, such asbetween 0.3 mm and 0.8 mm, such as between 0.5 mm and 0.6 mm.

[0066] The layers of the wind hood can be made of material from thenature, such as cotton, wool or flax, or it can be made of syntheticmaterial, such as plastic or glass fibers.

[0067] In a preferred embodiment, the wind hood is surroundingmicrophone(s) is suspended in a suspension comprising:

[0068] a base member, and

[0069] a plurality of bars mounted on said base member and extending ina direction transverse to a plane defined by the base member, themicrophone being suspended in between said bars, and

[0070] wherein the three layers are attached to first ring-shapedmembers in one end, respectively, and interconnected by a secondring-shaped member in the other end, the three layers being stretched bysaid first ring-shaped members attached to the end of first barsopposite to the base member and said second ring-shaped member attachedto the base member.

[0071] At least the outer layer of wind absorbing material is preferablycolored in a reference color, so that a system and a method according tothe first and second aspects, respectively, can detect the wind hood andthus the microphone.

DETAILED DESCRIPTION OF THE INVENTION

[0072] An embodiment of the invention will now be described in detailswith reference to the figures in which:

[0073]FIG. 1 shows a system for avoiding unwanted objects in a field ofvision,

[0074]FIG. 2 shows a flow chart for a program according to the firstaspect of the invention,

[0075]FIGS. 3 and 4 show a wind hood and the suspension for amicrophone,

[0076]FIG. 5 shows elastic members for a suspension for a microphone,

[0077] FIGS. 6-8 show a suspension for a microphone and a wind hood,

[0078]FIGS. 9 and 10 show the wind hood, and

[0079]FIGS. 11 and 12 show the suspension for the microphone.

[0080]FIG. 1 shows the system for avoiding unwanted objects in a fieldof vision. The system comprises a field of vision 1 defining apredetermined picture format/size, a search field 2, and an alarm field3. The field of vision is a proper subset of the alarm field, which is aproper subset of the search field. The detectable wind hood 4 isattached to the unwanted object 4 (the microphone). The signaling means6 signals to the boomer 7 when the detectable means enters said alarmfield.

[0081]FIG. 2 shows a flow diagram of the process for detecting theobject. The “microphone detection algorithm” may run through thefollowing steps:

[0082] 1. the microphone is searched in the alarm field,

[0083] 2. each group of pixels with values corresponding to the colorsthe system has been taught to be the reference color/specified color islocated,

[0084] 3. for each found group the number of pixels is counted and thepixel closest to the center is selected to be the microphone origin,

[0085] 4. all found microphone origins is then investigated and wouldonly be assumed valid in case the number of pixels in the group exceedsa predefined number and if its origin has not move more than a givendistance from an origin detected in a previous frame,

[0086] 5. in case more than one group has been validated the group withthe highest number of pixels is selected to be the microphone.

[0087]FIG. 3 shows a microphone suspension according to the invention.The suspension comprises a base member 10 pivotable mounted to a boom11. A plurality of bars 12 extend substantially perpendicular to thebase member and is adapted to hold the internal holder 13 by means offirst elastic members 14 (see FIG. 5). An oval ring-shaped member 12 ainterconnects the bars in the ends opposite to the base member. Themicrophone 5 is suspended in the internal holder 13.

[0088]FIG. 4 shows the internal holder 13 of the microphone suspension.The holder comprises two hollowed annular members 15 surrounding thehandgrip of the microphone. The annular members comprise supportingsurfaces 16 for one or more microphones. An upper rod 17 and a lower rod18 connect to the two annular members. The microphone(s) is maintainedto the holder by means of the elastic members 19 that are attached tothe annular members by means of the bars 20.

[0089]FIG. 5 shows the first elastic members 14 that hold the internalholder 13 in relation to the bars 12 of FIG. 3. The elastic members 14absorb the vibrations that may come from the boom, such that thevibrations do not influence on the sound quality in the microphone. Theinternal holder is preferably suspended with a plurality of elasticmembers extending in 10-15 directions.

[0090]FIG. 6 shows the internal holder 13 with a microphone suspendedtherein. The upper rod 17 extends over the center of gravity of themicrophone, and wherein the holder is suspended in the bars 12 of FIG.3, such that the point of suspension is placed between the center ofgravity of the microphone(s) and the head of the microphone(s).

[0091]FIG. 7 shows an embodiment of the wind hood according to theinvention. The wind hood comprises three layers of wind absorbingmaterial (nylon) 21 arranged on three oval-shaped members 22 in one endand a ring-shaped member 23 in the other end. the wind hood is stretchedout when the ring-shaped members are being attached to the suspension asshown in FIG. 8. The wind hood is foldable so that it takes up as lessroom as possible when not being used.

[0092]FIG. 8 shows the microphone suspension with the wind hood mountedthereon. The wind hood is stretched out, as the three oval-shapedmembers 22 of FIG. 7 are attached to the oval ring-shaped member 12 a ofFIG. 3 and the ring-shaped member 23 is attached to the base member 10of FIG. 3.

[0093]FIGS. 9 and 10 show a wind hood comprising a wind absorbingmaterial 21. In the figure there is only shown one wind absorbingmaterial but a plurality of layers may be provided such as two or threeor four or more. The wind hood comprises a back ring 30 and a front ring32. On both rings are provided a plurality of hinges 34 to whichinterconnecting members 36 are provided. The members 36 may be springsof strip steel. As the members 36 are connected to the rings 30 and 32the wind hood may be twisted into a position where the wind hood isfolded. This may be done by turning the rings in opposite directionse.g. clockwise and counter clockwise whereby the rings may be turnedinto a position where they touch or nearly touch each other. Furthermoresprings may be provided in the ends of the wind hood so as to stretchout the wind hood. In some embodiments (not shown) a sponge like elementmay be provided in one end e.g. such that it is inserted into the frontring 32. The element may be provided with a color to be detected by theinvention according to the first and second aspect of the invention. Theelement may be provided with a wind absorbing material.

[0094] The back ring 30 may be provided with attachment means 38 adaptedto attach the primary grip of FIG. 12 to the wind hood. If only the backring 30 is attached to the primary grip it is important that it issufficiently stiff to support the rest of the wind hood and stiff enoughto ensure that the inner surfaces of the wind hood do not touch themicrophone. The back ring 30 is furthermore provided with a hinge 37such that the end part of the wind hood may be opened when the primarygrip is attached to the wind hood. By hinging the end part of the windhood to the rest of the wind hood it is ensured the end part is notmisplaced and thereby lost.

[0095]FIGS. 11 and 12 shows a suspension for a microphone comprising abase ring 40 comprising a plurality of bars 42. A microphone 44 issupported by microphone supports 46 which are attached to the bars 42 bymeans of springs 48. A primary grip 50 is attached to the base ring 40.The primary grip 50 is provided with two signal connectors 52 and 54which are electrically connected to each other. The connector 54 may beconnected to the microphone and the connector 52 may be connected tosound recording equipment, thus the electrical connection to themicrophone may be secured and thereby any rattling or noise for theconnection is eliminated. The primary grip may extend in a directionsuch that it is situated under the center of gravity of the microphone.All the elements of the suspension device and the wind hood may be assmooth and round as possible such that acoustic influence from wind e.g.wind noise is reduced or eliminated.

[0096] The bars 42 are provided with locking means 56 adapted to engagewith a part of the springs 48. A plurality of locking means 56 areprovided such that the tension of the springs 48 may be adjusted. Thusthe tension may be adjusted depending on the size and the weight of themicrophone. The springs may be provided with more than one hole 57(adapted to engage the locking means) and thus the tension of the springmay be adjusted even further. The spring comprises gripping means 58such that it is easy for the user to adjust the tension of the spring.The springs are changeable and may have a hardness of 50 shore. In someembodiments the hardness may be between 40-60 shore or 30-70 shore or20-80 shore or 10-90 shore. Other parts of the suspension device may bemade of light materials such as carbon-fiber materials or aluminum orplastic.

[0097] The wind hood may be constructed such that it encapsulates themicrophone completely and thus wind turbulence inside the wind hood andaround the micro phone may be avoided. The suspension may be designed soas to be as open as possible and thus reducing acoustic interference.

[0098] It should be understood that, though the present inventionrelates to a number of independent aspects, any combination of theseaspects is possible within the scope of the present invention.

1. A system for avoiding unwanted objects in a field of vision andcomprising: a field of vision defining a predetermined pictureformat/size, a search field, an alarm field, the field of vision being aproper subset of the alarm field, which is a proper subset of the searchfield, detectable means attached to the unwanted object, detecting meansfor searching the detectable means within at least a part of the searchfield, and signaling means for signaling when the detectable meansenters said alarm field.
 2. A system according to claim 1, wherein thesize of the alarm field is adjustable.
 3. A system according to claim 1,wherein the object(s) is searched within the alarm field only.
 4. Asystem according to claim 1, wherein the field of vision and/or thesearch field is provided by an apparatus for capturing images, such asmoving images or still images.
 5. A system according to claim 4, whereinthe apparatus comprises a camera for capturing images on light sensitivefilm rolls and/or electronically by light sensitive elements.
 6. Asystem according to claim 1, wherein the detectable means are passivemeans.
 7. A system according to claim 6, wherein the detectable means isan item colored in at least one specified color.
 8. A system accordingto claim 7, wherein the detecting means comprises; storing means forstoring a reference color equal to said specified color, and processingmeans for detecting groups of pixels having at least a predefined numberof pixels representing said specified color.
 9. A system according toclaim 8, wherein the detecting means comprises processing means for:detecting groups of pixels having at least a predefined number ofpixels, and comparing the color of said groups with said specifiedcolor.
 10. A system according to claim 1, wherein the means fordetecting comprises a color histogram indicating the primary backgroundcolors in said search field, so as to allow choosing of a distinguishingspecified color for the detectable means in relation to said backgroundcolors.
 11. A system according to claim 1, wherein the object comprisesa microphone suspended in a microphone suspension.
 12. A systemaccording to claim 11, wherein the detectable means comprises a windhood surrounding said microphone and being colored in said specificcolor.
 13. A system according to claim 12, wherein the wind hood is madeof a material having a substantially homogenous light reflectingsurface.
 14. A system according to claim 12, wherein the wind hood istubular and substantially ring-shaped.
 15. A system according to claim13, wherein the material comprises a textile of thin woven nylon fibers.16. A system according to claim 1, wherein the signaling means comprisesmeans for transmitting alert signals to the boomer.
 17. A systemaccording to claim 16, wherein the means for transmitting the alertsignal comprises means for transmitting the signal via wire and/or viawireless communication such as infra red communication or such as radiofrequency.
 18. A system according to claim 17, wherein the alert signalis an audio signal and/or a visual signal and/or vibration signal.
 19. Amethod for avoiding unwanted objects in a field of vision, the methodcomprising the steps of: providing a field of vision defining apredetermined picture format/size, providing a search field, providingan alarm field, the field of vision being a proper subset of the alarmfield, which is a proper subset of the search field, attachingdetectable means on the unwanted object, providing detecting means forsearching the detectable means within at least a part of the searchfield, and providing signaling means for signaling when the detectablemeans enters said alarm field.
 20. A method according to claim 19,wherein the search field comprises a plurality of pixels representingcolors, and wherein the detectable means is colored in a specified colorequal to a reference color, the method comprising the steps of: storingthe reference color, detecting groups of pixels having at least apredefined number of pixels representing the same color, and comparingthe groups of pixels having the same color with the said specifiedcolor.
 21. A method according to claim 19, wherein the search fieldcomprises a plurality of pixels representing colors, and wherein thedetectable means is colored in a specified color equal to a referencecolor, the method comprising the steps of: storing the reference color,detecting pixels having the specified color, detecting adjacent pixelshaving the specified color and comparing the number of adjacent pixelshaving the specified color with a predefined number of pixels.
 22. Amethod according to claim 20, further comprising, prior to the step ofstoring the reference color, the step of comparing the primarybackground colors in the search field with the reference color, so as tochoose a reference color being different from the colors in the searchfield.
 23. A method according to claims 20, further comprising the stepof selecting the group of pixels/adjacent pixels closest to the centerof the field of vision, so as to select the origin of the object.
 24. Amethod according to claim 22, further comprising, prior to the step ofstoring the reference color, the step of determining the reference colorfrom an object by capturing an image of the object having the referencecolor.
 25. A method according to claim 19, further comprising the stepof adjusting the size of the alarm field by changing the length of itsedges or by choosing between different preset picture formats.
 26. Asuspension for microphones comprising: a base member, a plurality ofbars mounted on said base member and extending in a direction transverseto a plane defined by the base member, an internal microphone holderholding one or more microphones, and a plurality of first elasticmembers extending between said bars and the internal holder for holdingthe internal holder in relation to said bars.
 27. A suspension accordingto claim 26, wherein the base member is pivotable mounted to a boom. 28.A suspension according to claim 26, wherein the internal holdercomprises: at least one annular hollowed member surrounding a part of ahandgrip of the one or more microphones, supporting surfaces for the oneor more microphones being positioned in the interior area of saidannular member, and means for maintaining the one or more microphones tosaid supporting surfaces.
 29. A suspension according to claim 26, andcomprising at least two hollowed annular members surrounding a part of ahandgrip of the one or more microphones and being interconnected by atleast an upper and lower rod to which said first elastic members areattached.
 30. A suspension according to claim 28, wherein the supportingsurfaces comprise bricks of a resilient material, such as silicone, andwherein the means for maintaining comprises second elastic membersattached to said annular members and adapted to press a part of saidhandgrip towards the bricks.
 31. A suspension according to claim 27,wherein the internal holder is suspended in the bars, such that at leastone point of suspension is placed between the center of gravity of themicrophone(s) and the head of the microphone(s).
 32. A suspensionaccording to claim 27, further comprising a wind hood surrounding atleast the head of the microphone(s) and having layers of wind absorbingmaterial stretched arranged with interspace on said bars.
 33. Asuspension according to claim 27, wherein the bars in the ends oppositeto the base member are interconnected by an oval ring-shaped member. 34.A suspension according to claim 33, wherein the angle between the basemember and the oval ring-shaped member is between 10° and 60°, such asbetween 20° and 40°, such as 30°.
 35. A wind hood for a microphonecomprising at least an outer, a middle and an inner layer of windabsorbing material stretchable arranged with interspaces around themicrophone.
 36. A wind hood according to claim 35, wherein the materialcomprises an elastic fiber material, such as a textile of thin wovennylon fibers.
 37. A wind hood according to claim 36, wherein the fibersare woven such that the hole size in the woven pattern is between 0.01mm² and 1 mm², such as between 0.05 mm² and 0.8 mm², such as between0.09 mm² and 0.6 mm² such as between 0.11 mm² and 0.4 mm², such asbetween 0.13 mm² and 0.2 mm².
 38. A wind hood according to claim 36,wherein the distance between each fiber is between 0.1 mm and 1 mm, suchas between 0.3 mm and 0.8 mm, such as between 0.5 mm and 0.6 mm.
 39. Awind hood according to claim 35, wherein the interspace between eachlayer is 5-15 mm, such as 10 mm.
 40. A wind hood according to claim 35,wherein the layers are made of a material having a substantiallyhomogenous wind absorbing surface, the layers being tubular andsubstantially ring-shaped.
 41. A wind hood according to claim 35,wherein the microphone is suspended in a suspension comprising: a basemember, and a plurality of bars mounted on said base member andextending in a direction transverse to a plane defined by the basemember, the microphone being suspended in between said bars, and whereinthe three layers are attached to first ring-shaped members in one end,respectively, and interconnected by a second ring-shaped member in theother end, the three layers being stretched by said first ring-shapedmembers attached to the end of first bars opposite to the base memberand said second ring-shaped member attached to the base member.
 42. Awind hood according to claim 41, wherein the angle between the firstring-shaped members and the second ring-shaped member is between 10° and60°, such as between 20° and 40°, such as 30°.
 43. A wind hood accordingto claim 35, wherein at least the outer layer of wind absorbing materialis colored in a reference color, so as to detect the microphone in afield of vision according to the method of claim 19.